CheckSEO · Free Website SEO Tool

Free Core Web Vitals What is

What is your Core Web Vitals & Website & Core Web Vitals for Free with CheckSEO. Analyze 22+ key SEO factors: meta tags, page speed, SSL, mobile-friendliness, sitemap, backlinks, Core Web Vitals, and more — no signup needed, results in 30 seconds!

🔍 Try it now — free, no signup needed:

✓ Free  ·  ✓ No signup  ·  ✓ 30-second results  ·  ✓ 22+ SEO factors

What is Free Core Web Vitals What is?

Website speed is the time it takes for a page to fully load in a visitor's browser. Google uses Core Web Vitals — LCP (Largest Contentful Paint), FID (First Input Delay), and CLS (Cumulative Layout Shift) — as official speed metrics that directly affect rankings since the 2021 Page Experience update.

Why Does This Matter for SEO?

53% of mobile users abandon websites that take more than 3 seconds to load. Speed is also an official Google ranking factor — slow websites lose SERP positions and conversions simultaneously, compounding the business impact.

How to Use: Free Core Web Vitals What is

  1. 1
    Enter your domain in the form above
    CheckSEO automatically analyzes PageSpeed score, LCP, FID, CLS, TTFB, and render-blocking resources.
  2. 2
    Read your PageSpeed score (0–100)
    90+ = fast, 50–89 = needs improvement, 0–49 = critically slow and needs immediate attention.
  3. 3
    Identify unoptimized images
    Large uncompressed images are the most common cause of slow websites. Convert all images to WebP format.
  4. 4
    Check for render-blocking resources
    CSS and JavaScript that block rendering make pages feel slow even with a fast server and connection.
  5. 5
    Review caching configuration
    Browser and server-side caching dramatically reduces load times for returning visitors.

What CheckSEO Analyzes

⚡
Page Speed
PageSpeed, LCP, FID, CLS, TTFB, render-blocking resources
🔗
Backlink Analysis
Link profile, anchor text, referring domains, toxic links
🔍
Keyword Research
Search volume, keyword difficulty, keyword suggestions
🔒
SSL & Security
HTTPS certificate, mixed content, expiry, redirect check
📱
Mobile Friendly
Responsiveness, viewport, touch targets, mobile usability
✅
22+ SEO Factors
Full audit of all Google ranking factors

Frequently Asked Questions

What's the ideal website loading speed?
LCP under 2.5s, FID under 100ms, and CLS under 0.1 are "Good" by Google's standards. Aim for all three for optimal ranking.
Does hosting quality affect speed?
Significantly. TTFB (Time to First Byte) directly depends on hosting quality. Cheap shared hosting often has slow response times.
Why is my website slow despite good hosting?
Most likely unoptimized images, too many active plugins, render-blocking scripts, or inefficient database queries.
Are mobile and desktop speed scores different?
Yes. Google uses mobile-first indexing, so mobile scores matter more for rankings. Desktop scores are usually higher.
How much does speed impact rankings?
Speed is one of 200+ ranking factors. Very slow sites (5+ second LCP) face significant disadvantage, but speed alone won't make you rank — content remains the primary driver.

Related SEO Tools

🔗 Free Backlink Checker 🔍 Keyword Research 📈 Check Google Ranking 🔒 Check SSL Certificate 📱 Check Mobile Friendly

Ready for a full SEO check of your website?

← Back to CheckSEO